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Finding the Fourth Proportional to 316,804.56, 437,186.66 and 171,607.58

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Solution

The fourth proportional to 316,804.56, 437,186.66 and 171,607.58 is: 236,816.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,804.56 : 437,186.66 = 171,607.58 : x
  2. Step 2: Convert to fraction form
    316,804.56/437,186.66 = 171,607.58/x
  3. Step 3: Cross multiply
    316,804.56x = 437,186.66 × 171,607.58
  4. Step 4: Simplify right side
    316,804.56x = 75,024,541,686.91
  5. Step 5: Solve for x
    x = 75,024,541,686.91/316,804.56
  6. Step 6: Final answer
    x = 236,816.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.